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- /*
- * Copyright (c) 1988 The Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by the University of California, Berkeley. The name of the
- * University may not be used to endorse or promote products derived
- * from this software without specific prior written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- *
- */
-
- #ifndef lint
- static char sccsid[] = "@(#)logwtmp.c based on 5.5 (Berkeley) 4/2/89";
- #endif /* not lint */
-
- #include <sys/types.h>
- #include <sys/file.h>
- #include <sys/time.h>
- #include <sys/stat.h>
- #include <utmp.h>
-
- #ifndef _PATH_WTMP
- #define _PATH_WTMP "/usr/adm/wtmp"
- #endif
-
- static int fd = -1;
-
- /*
- * Modified version of logwtmp that holds wtmp file open
- * after first call, for use with ftp (which may chroot
- * after login, but before logout).
- */
- logwtmp(line, name, host)
- char *line, *name, *host;
- {
- struct utmp ut;
- struct stat buf;
- time_t time();
- char *strncpy();
-
- if (fd < 0 && (fd = open(_PATH_WTMP, O_WRONLY|O_APPEND, 0)) < 0)
- return;
- if (fstat(fd, &buf) == 0) {
- (void)strncpy(ut.ut_line, line, sizeof(ut.ut_line));
- (void)strncpy(ut.ut_name, name, sizeof(ut.ut_name));
- (void)strncpy(ut.ut_host, host, sizeof(ut.ut_host));
- (void)time(&ut.ut_time);
- if (write(fd, (char *)&ut, sizeof(struct utmp)) !=
- sizeof(struct utmp))
- (void)ftruncate(fd, buf.st_size);
- }
- }
-